assume cs:code, ds:data

data segment
    dd 100001
    dw 100
    dw 0
data ends

code segment
start:
    mov ax, data
    mov ds, ax
    mov ax, ds:[0]
    mov dx, ds:[2]
    div word ptr ds:[4]
    mov ds:[6], ax

    mov ax, 4c00H
    int 21H
code ends

end start